Multiple-chambered exhaust muffler

US7004283B2 · kind B2 · utility

Assignee

• J. Eberspaecher GmbH & Co. KG · DE

Inventors

• Siegfried Worner · Eßlingen, DE
• Herbert Schumacher · Gerlingen, DE
• Norbert Klein · Pocking, DE
• Helmut Neu · Ottweiler, DE
• Stephan Giebel · Wadern, DE

Key dates

• Filing date: Apr 12, 2001
• Grant date: Feb 28, 2006
• Expiry date: May 31, 2022

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F01N2490/155
• WIPO field: Environmental technology
• WIPO sector: Chemistry

Abstract

An exhaust gas muffler of multi-chamber construction includes an outer housing having an upper and lower half shell, an inner shell, and an inner exhaust gas duct through the exhaust gas muffler. The inner exhaust gas duct has at lease one curved outlet pipe that has a first curved section and a straight outlet end runs flush with the outer housing. The invention also covers a method for the production of the multi-chamber exhaust gas muffler.